diff --git a/wm/src/window_impl.cpp b/wm/src/window_impl.cpp
index bd797a1a..416682de 100644
--- a/wm/src/window_impl.cpp
+++ b/wm/src/window_impl.cpp
@@ -1212,6 +1212,7 @@ void WindowImpl::SetDefaultOption()
             property_->SetWindowMode(WindowMode::WINDOW_MODE_FLOATING);
             break;
         }
+        case WindowType::SYSTEM_WINDOW_END: // SYSTEM_WINDOW_END is for boot animation, is unfocusable.
         case WindowType::WINDOW_TYPE_POINTER: {
             property_->SetFocusable(false);
             break;
diff --git a/wmserver/BUILD.gn b/wmserver/BUILD.gn
index 7224420b..86758ba4 100644
--- a/wmserver/BUILD.gn
+++ b/wmserver/BUILD.gn
@@ -93,6 +93,7 @@ ohos_shared_library("libwms") {
     "ces_standard:cesfwk_innerkits",
     "graphic_standard:surface",
     "hilog_native:libhilog",
+    "hisysevent_native:libhisysevent",
     "ipc:ipc_core",
     "multimodalinput_base:libmmi-client",
     "safwk:system_ability_fwk",
diff --git a/wmserver/include/window_root.h b/wmserver/include/window_root.h
index 9cd558f1..4f965cdd 100644
--- a/wmserver/include/window_root.h
+++ b/wmserver/include/window_root.h
@@ -62,6 +62,7 @@ public:
     void NotifyDisplayDestroy(DisplayId displayId);
     void NotifySystemBarTints();
     WMError RaiseZOrderForAppWindow(sptr<WindowNode>& node);
+    void FocusFaultDetection() const;
     float GetVirtualPixelRatio(DisplayId displayId) const;
 
 private:
@@ -69,12 +70,14 @@ private:
     WMError DestroyWindowInner(sptr<WindowNode>& node);
     void UpdateFocusWindowWithWindowRemoved(const sptr<WindowNode>& node,
         const sptr<WindowNodeContainer>& container) const;
+    std::string GenAllWindowsLogInfo() const;
     bool CheckDisplayInfo(const sptr<AbstractDisplay>& display);
 
     std::recursive_mutex& mutex_;
     std::map<int32_t, sptr<WindowNodeContainer>> windowNodeContainerMap_;
     std::map<uint32_t, sptr<WindowNode>> windowNodeMap_;
     std::map<sptr<IRemoteObject>, uint32_t> windowIdMap_;
+    bool needCheckFocusWindow = false;
 
     std::map<WindowManagerAgentType, std::vector<sptr<IWindowManagerAgent>>> windowManagerAgents_;
 
diff --git a/wmserver/src/window_controller.cpp b/wmserver/src/window_controller.cpp
index efaf27a0..6e9b0773 100644
--- a/wmserver/src/window_controller.cpp
+++ b/wmserver/src/window_controller.cpp
@@ -71,6 +71,7 @@ WMError WindowController::AddWindowNode(sptr<WindowProperty>& property)
     if (res != WMError::WM_OK) {
         return res;
     }
+    windowRoot_->FocusFaultDetection();
     FlushWindowInfo(property->GetWindowId());
 
     if (node->GetWindowType() == WindowType::WINDOW_TYPE_STATUS_BAR ||
@@ -96,6 +97,7 @@ WMError WindowController::RemoveWindowNode(uint32_t windowId)
     if (res != WMError::WM_OK) {
         return res;
     }
+    windowRoot_->FocusFaultDetection();
     FlushWindowInfo(windowId);
     return res;
 }
@@ -111,6 +113,7 @@ WMError WindowController::DestroyWindow(uint32_t windowId, bool onlySelf)
     if (res != WMError::WM_OK) {
         return res;
     }
+    windowRoot_->FocusFaultDetection();
     FlushWindowInfoWithDisplayId(displayId);
     return res;
 }
@@ -385,6 +388,7 @@ WMError WindowController::ProcessWindowTouchedEvent(uint32_t windowId)
         WLOGFI("ProcessWindowTouchedEvent end");
         return WMError::WM_OK;
     }
+    windowRoot_->FocusFaultDetection();
     return WMError::WM_ERROR_INVALID_OPERATION;
 }
 
diff --git a/wmserver/src/window_root.cpp b/wmserver/src/window_root.cpp
index 6a67ba3b..88f03a48 100644
--- a/wmserver/src/window_root.cpp
+++ b/wmserver/src/window_root.cpp
@@ -16,6 +16,7 @@
 #include "window_root.h"
 
 #include <cinttypes>
+#include <hisysevent.h>
 
 #include "display_manager_service_inner.h"
 #include "window_helper.h"
@@ -171,6 +172,7 @@ WMError WindowRoot::AddWindowNode(uint32_t parentId, sptr<WindowNode>& node)
     }
     if (res == WMError::WM_OK && node->GetWindowProperty()->GetFocusable()) {
         container->SetFocusWindow(node->GetWindowId());
+        needCheckFocusWindow = true;
     }
     return res;
 }
@@ -467,6 +469,60 @@ WMError WindowRoot::SetWindowLayoutMode(DisplayId displayId, WindowLayoutMode mo
     return ret;
 }
 
+std::string WindowRoot::GenAllWindowsLogInfo() const
+{
+    std::ostringstream os;
+    WindowNodeOperationFunc func = [&os](sptr<WindowNode> node) {
+        if (node == nullptr) {
+            WLOGE("WindowNode is nullptr");
+            return false;
+        }
+        os<<"window_name:"<<node->GetWindowName()<<",id:"<<node->GetWindowId()<<
+           ",focusable:"<<node->GetWindowProperty()->GetFocusable()<<";";
+        return false;
+    };
+
+    for (auto& elem : windowNodeContainerMap_) {
+        if (elem.second == nullptr) {
+            continue;
+        }
+        os<<"Display "<<elem.second->GetDisplayId()<<":";
+        elem.second->TraverseWindowTree(func, true);
+    }
+    return os.str();
+}
+
+void WindowRoot::FocusFaultDetection() const
+{
+    if (!needCheckFocusWindow) {
+        return;
+    }
+    bool needReport = true;
+    uint32_t focusWinId = INVALID_WINDOW_ID;
+    for (auto& elem : windowNodeContainerMap_) {
+        if (elem.second == nullptr) {
+            continue;
+        }
+        focusWinId = elem.second->GetFocusWindow();
+        if (focusWinId != INVALID_WINDOW_ID) {
+            needReport = false;
+            sptr<WindowNode> windowNode = GetWindowNode(focusWinId);
+            if (windowNode == nullptr || !windowNode->currentVisibility_) {
+                needReport = true;
+                WLOGFE("The focus windowNode is nullptr or is invisible, focusWinId: %{public}u", focusWinId);
+                break;
+            }
+        }
+    }
+    if (needReport) {
+        std::string windowLog(GenAllWindowsLogInfo());
+        WLOGFE("The focus window is faulty, focusWinId:%{public}u, %{public}s", focusWinId, windowLog.c_str());
+        OHOS::HiviewDFX::HiSysEvent::Write(OHOS::HiviewDFX::HiSysEvent::Domain::GRAPHIC, "NO_FOCUS_WINDOW",
+            OHOS::HiviewDFX::HiSysEvent::EventType::FAULT, "PID", getpid(), "UID", getuid(),
+            "FOCUS_WINDOW", focusWinId, "FAULT_INFO", windowLog);
+    }
+}
+
 void WindowRoot::NotifyDisplayDestroy(DisplayId expandDisplayId)
 {
     WLOGFD("disconnect expand display, get default and expand display container");